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KonstantinChe [14]
2 years ago
11

F(x) = x - 1. Find the inverse of f(x).

Mathematics
1 answer:
bekas [8.4K]2 years ago
8 0

Answer:

f^-1(x) = x+1

Step-by-step explanation:

turn into y = x-1

1. Flip x to y and y to x

   x = y-1

2. isolate y

x+1 = y

using a graph you can find it by reflecting x-1 over y=x

     

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F(x) = -3x – 2<br> g(x) = 2x + 5<br> Find (f*g)(5)
antiseptic1488 [7]

Answer:

hope it will help u in understanding

3 0
3 years ago
Brainliest and points !! ANSWER ASAP !!
Igoryamba

Answer:

Step-by-step explanation:

The sum of the ages of a Mother and her son is 78 , three years ago the mother is five times as old as the son, what is their present ages?

To solve this , let the age of the mother be x and the age of the son be y , from the first statement :

x + y = 78

Three years ago , the mother will be x- 3 and the son will be y - 3 , from the second statement:

x - 3 = 5 ( y-3)

x- 3 = 5y - 15

x - 5y = -12

The resulting equations are

x + y = 78

x - 5y = -12

This is called a simultaneous linear equation , that means it is a linear equation.

The side of a square is xcm , if the difference between the area and the perimeter is 12 , find the legth of its side.

Interpretation:

The formula for the area of a square is l^{2} and the perimeter is 4l , from the question , we have

x^{2} - 4x = 12

This is not a linear equation , it is simply a quadratic equation , so the situation is non linear

5 0
3 years ago
Help please Math problems?
Andrews [41]
The answer is ep I think
3 0
3 years ago
Read 2 more answers
Three girls (Zeva, Abby and Jenny) went to a hair salon. Each girl had their hair styled (curly, straight, and wavy) and colored
lutik1710 [3]
That doesn’t make sense? Do u mean like guess on what their hair color and style could be
7 0
3 years ago
12x - 5 = 8x - x + 50<br> Help please show work and check the solution
Inga [223]

Answer:

x = 11

Step-by-step explanation:

12x - 5 = 8x - x + 50 \\ 12x - 5 = 7x + 50 \\ 12x - 5 - 7x = 7x + 50 - 7x \\ 12x - 7x - 5 = 50  \\ 5x - 5 = 50 \\ 5x - 5 + 5 = 50 + 5 \\ 5x = 55 \\ x = 11

and check:

12(11) - 5 = 8(11) - (11) + 50 \\ 132 - 5 = 77 + 50 \\ 127 = 127

3 0
3 years ago
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